Register attachment for hot air



May 18, 1937. M. LOWINGER REGISTER ATTACHMENT FOR HOT AIR REGISTERS Filed NOV. 21, 1934 INVENTOR.

ATTORNEY.

' like reference characters designate the same Patented May 18, 1937 UNITED STATES PA-TEN r OFFICE REGISTER ATTACHMENT FOR 1101' AIR anors'mns I Max Lowinger, Columbus, Ohio Application November 21, 1934, Serial No. 754,192

3 Claims.

The invention to be hereinafter described re lates to register attachments for hot air registers.

There are many well known register attachments for hot air registers, adapted to filter out the dust and solid impurities and. at the same time, deflect the rising hot air so that it will not rise vertically, but be directed at an angle to the vertical to heat the room or passage more efficiently. Hardly any two of them are alike in construction or operation. Many are metal. Many comprise a number of parts hinged or otherwise pivotally connected together. Many are of several parts separately connected. They are, for devices of their sizes and types, relatively complicated, uneconomical, cumbersome and expensive, as to maintain in operative position.

The main objects of the present invention are to overcome all of the above and many other objections and to provide a simple, efiicient, compact, durable and readily applicable attachment which may be made in large quantities at a very low cost; an attachment of the simplest practical, construction and fewest number of parts; an, I

ineflicient. well as diflicult but it may be of any desired shape, as will be readily understood.

Refen-ing to the drawing indetail, I indicates the central portion of the blank, which forms the top of the final or completed attachment. At

1 each side is a triangular wing 2, the line of connection, in each instance, being heavily scored at 3, so that wing 2 may be easily and quickly folded substantially at right angles to I to provide a side wall relatively high at one end but running to zero at the opposite end, the higher end being the front and the rear or zero end the back, as the attachment is applied. Each wing is similarly deeply scored at 4 parallel with its free edge and extending from the front to the rear, the score line 4 meeting the rear end of the respective score line 3 which makes the attachment requiring minimum space and least" possible trouble in shipping in any quantity,

from the smallest to the greatest; and an attachment which maybe rapidly produced in large quantities, from the cheapest practical materials.

In order to more clearly disclose the construction, operation and use of the invention, reference'should be had to the accompanying drawing forming part of the present application. Throughout the several figures of the drawing,

parts in the several views.

In the drawing; 7

Fig. 1 is a top plan view folding, greatly reduced;

Fig. 2 is' a top plan view folded and in use;

Fig. 3 is a side elevation; and,

Fig. 4 is a front view.

The present invention is designed to be stamped complete, in a single operation, as a unit or single piece, and to be stamped from a single piece of card board or similar stock or material. This finished blank is shown in Fig. 1. In the operation of stamping, or separately if desired, it is scored as indicat d by the dotted lines, so that it may be readily and accurately folded along such score lines. A considerable opening is also stamped through the center, which becomes the top. This opening, in the form illustrated, in the drawing is rectangular,

of the blank, before allel with top I.

:junction of that side with the top. This provides .an oblong strip 5 which, when side 2 is at right angles to the top I, may be folded inwardly par- In this position, each strip or flange member 5 is adapted to slip beneath the edge of a register or'between it and the floor, to

hold the device in place. Another score line 6 across the rear, provides an oblong member I adapted'to be similarly folded under to form the holding or engaging flange at the rear and extending the. full length or width of the rear. The attachment thus made grips the register securely around three SidGSu If the register is vertical, instead of horizontal, as when it is in a wall, the front or open side will be down. of course, and the flange I will act as a hook to engage over the upper edge of the register and suspend the attachment, as will be readily understood.

It will be noticed that the stamping leaves only a very narrow or weak frame surrounding the opening or center. This, of course, leaves an otherwise weak top subject to collapse or cave in. It has little resistance. The front edge, especially, is weak, as. it has no cooperating stiffening walls as at the sides. So, to counteract this, a stiffening member or flange 8 is provided as a forward extension of the top, and separated from the top by a heavy score line 9. This stiflener extension is adapted to be folded inwardly and upwardly against the top and to be securely fastened there to brace and strengthen the top.

. 2 means. This bracing or stiflening effect is clearly shown in Figs. 2-4.

The cut out portion of a flne mesh flltering or screen cloth I! suitably secured to the top by cement or other well known means, along the edges 01 the inside of the top, preferably. l

From the above, it will be seen thatthe-single blank m y be stamped in great quantities, fromv very lo priced materials, and at very low cost.

Cheese cloth is a very acceptable material for the filter or screen. The stiflener flanges 8 and it are easily and quickly folded over and secured,

permanently in their operative positions. The attachment is then complete and ready for use. n this flat. condition, large wholesale quantities /may be easily handled or shipped.

Each user simply folds the blanksalong their respective score lines. Thefolds along score lines 3 produce the side wall 2 or wings, while the folds along the score lines 4 and 6 provide the attaching flanges and 1,-respectively, for engaging under the, register edgw and securing the attachment in operative position. .When flanges 5 and 1 are engaged'beneath the 'respective edges of the register they will hold the attachment in operative position so that hot air issuing through the register will meet the cheese cloth and have all dust and solid matter thor oughly screened or sifted out. At the same time, due to the flne mesh of the cheese cloth, most of the hot air will be deflected by the inclination of the top and directed outwardly through the open side and in a direction relatively parallel with the register face, instead of substantially perpendicular to it, as is'the case when 'no attachmentisused. Thus, the attachment, at one and the same time, serves two separate and useful purposes. It serves to check the vertical rise of the hot or heated air, and to direct it more nearly parallel with theface of the register. It serves to thorou hly filter or screen the heated air and remove all dust or other solid foreign matter. only necessary to swing the side wall slightly outwardly so that the respective flanges slip from beneath the register edge, and then slip the attachment at right angles tosimilarly disengage the rear ilangeffrom beneath the corresponding edge of the register. Obviously, these movements may be made in the reverse order just as practically.

' It is thought that the construction, operation and use of the invention will be clear from the preceding detailed description. 7

' Whilepaper board or card board has been reaosonaa ierred to as a preferred material, it is to be understood that such terms are intended and un-' the center is closed by by such illustration.

To remove any such attachment it is derstood to include all other materials having similar characteristics, so that the blanks of such other materials may be readily stamped, scored and folded. 80, throughout the claims and speciflcation the .terms paper board, cardv board, or paper, are to be construed'as including all other such similar materials, unless the conteirt shall clearly and unquestionably require otherwise.

. ing from the invention, and it is meant to include all such within this application wherein only a single preferred form has been illustrated, purely for demonstration and with no slightest thought of in any degreelimiting the application Having thus described my invention, what I claim and desire to secure by Letters Patent is:-

1. A register attachment comprising a single flat sheet provided with scores delimiting and flexibly joining a plurality of sections, one of said sections constituting a top and being provided with an opening, a filter carriedby said top Many changes may be made in the construe-- tion, arrangement and disposition of the'variand extending across said opening, two of said 1.

sections being triangular and tapering from maximum at front to zero at rear and constituting sides, three of said sections connected, respectuting side and top stifleners, and three of said sections connected, respectively, to said top and sides constituting attaching flanges.

2. A collapsible register a tachment comprising. I ar side wall sections .tively, to the edges of said top and sides constiimum at rear, attaching flanges carried by said top and sides, stiflener sections carried by said top and side sections, all said parts being formed from a'single sheet of, material'provided with scores delimiting and flexibly joining said parts, said top and side wall, in operative position forming a hot air outlet.

. MAX LOWINGER. 

